Started parser but not working yet, finished makefile

12 files changed, 708 insertions, 2341 deletions

diff --git a/c_parser/include/c_lexer.hpp b/c_parser/include/c_lexer.hpp
deleted file mode 100644
index 059664a..0000000
--- a/c_parser/include/c_lexer.hpp
+++ /dev/null
@@ -1,33 +0,0 @@
-#ifndef C_LEXER_HPP
-#define C_LEXER_HPP
-
-#include <string>
-
-enum TokenType {
-	None,
-	Keyword,
-	Identifier,
-	Operator,
-	Constant,
-	StringLiteral,
-	Invalid
-};
-
-// Global variable that will be looked for by byson
-extern std::string *yylval;
-
-// flex function to run on input
-extern int yylex();
-
-extern int yyleng;
-
-extern int lineCount;
-extern int spaceCount;
-extern int sourceLineCount;
-
-extern std::string fileName;
-
-// get the correct output
-std::string toJson(const std::string& classType, const std::string& text, const std::string& strLine, const std::string& srcCol, const std::string& srcLine, const std::string& fName);
-
-#endif
diff --git a/c_parser/src/.tab.output b/c_parser/src/.tab.output
new file mode 100644
index 0000000..becc5a7
--- /dev/null
+++ b/c_parser/src/.tab.output
@@ -0,0 +1,310 @@
+Grammar
+
+    0 $accept: ROOT $end
+
+    1 ROOT: EXPR
+
+    2 EXPR: TERM
+    3     | EXPR T_PLUS TERM
+    4     | EXPR T_MINUS TERM
+
+    5 TERM: FACTOR
+    6     | TERM T_TIMES FACTOR
+    7     | TERM T_DIVIDE FACTOR
+
+    8 FACTOR: T_NUMBER
+    9       | T_VARIABLE
+   10       | T_LBRACKET EXPR T_RBRACKET
+   11       | FUNCTION_NAME FACTOR
+
+   12 FUNCTION_NAME: T_LOG
+   13              | T_EXP
+   14              | T_SQRT
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+error (256)
+T_TIMES (258) 6
+T_PLUS (259) 3
+T_DIVIDE (260) 7
+T_MINUS (261) 4
+T_LBRACKET (262) 10
+T_RBRACKET (263) 10
+T_LOG (264) 12
+T_EXP (265) 13
+T_SQRT (266) 14
+T_NUMBER (267) 8
+T_VARIABLE (268) 9
+
+
+Nonterminals, with rules where they appear
+
+$accept (14)
+    on left: 0
+ROOT (15)
+    on left: 1, on right: 0
+EXPR (16)
+    on left: 2 3 4, on right: 1 3 4 10
+TERM (17)
+    on left: 5 6 7, on right: 2 3 4 6 7
+FACTOR (18)
+    on left: 8 9 10 11, on right: 5 6 7 11
+FUNCTION_NAME (19)
+    on left: 12 13 14, on right: 11
+
+
+State 0
+
+    0 $accept: . ROOT $end
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    ROOT           go to state 7
+    EXPR           go to state 8
+    TERM           go to state 9
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 1
+
+   10 FACTOR: T_LBRACKET . EXPR T_RBRACKET
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    EXPR           go to state 12
+    TERM           go to state 9
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 2
+
+   12 FUNCTION_NAME: T_LOG .
+
+    $default  reduce using rule 12 (FUNCTION_NAME)
+
+
+State 3
+
+   13 FUNCTION_NAME: T_EXP .
+
+    $default  reduce using rule 13 (FUNCTION_NAME)
+
+
+State 4
+
+   14 FUNCTION_NAME: T_SQRT .
+
+    $default  reduce using rule 14 (FUNCTION_NAME)
+
+
+State 5
+
+    8 FACTOR: T_NUMBER .
+
+    $default  reduce using rule 8 (FACTOR)
+
+
+State 6
+
+    9 FACTOR: T_VARIABLE .
+
+    $default  reduce using rule 9 (FACTOR)
+
+
+State 7
+
+    0 $accept: ROOT . $end
+
+    $end  shift, and go to state 13
+
+
+State 8
+
+    1 ROOT: EXPR .
+    3 EXPR: EXPR . T_PLUS TERM
+    4     | EXPR . T_MINUS TERM
+
+    T_PLUS   shift, and go to state 14
+    T_MINUS  shift, and go to state 15
+
+    $default  reduce using rule 1 (ROOT)
+
+
+State 9
+
+    2 EXPR: TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 2 (EXPR)
+
+
+State 10
+
+    5 TERM: FACTOR .
+
+    $default  reduce using rule 5 (TERM)
+
+
+State 11
+
+   11 FACTOR: FUNCTION_NAME . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 18
+    FUNCTION_NAME  go to state 11
+
+
+State 12
+
+    3 EXPR: EXPR . T_PLUS TERM
+    4     | EXPR . T_MINUS TERM
+   10 FACTOR: T_LBRACKET EXPR . T_RBRACKET
+
+    T_PLUS      shift, and go to state 14
+    T_MINUS     shift, and go to state 15
+    T_RBRACKET  shift, and go to state 19
+
+
+State 13
+
+    0 $accept: ROOT $end .
+
+    $default  accept
+
+
+State 14
+
+    3 EXPR: EXPR T_PLUS . TERM
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    TERM           go to state 20
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 15
+
+    4 EXPR: EXPR T_MINUS . TERM
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    TERM           go to state 21
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 16
+
+    6 TERM: TERM T_TIMES . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 22
+    FUNCTION_NAME  go to state 11
+
+
+State 17
+
+    7 TERM: TERM T_DIVIDE . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 23
+    FUNCTION_NAME  go to state 11
+
+
+State 18
+
+   11 FACTOR: FUNCTION_NAME FACTOR .
+
+    $default  reduce using rule 11 (FACTOR)
+
+
+State 19
+
+   10 FACTOR: T_LBRACKET EXPR T_RBRACKET .
+
+    $default  reduce using rule 10 (FACTOR)
+
+
+State 20
+
+    3 EXPR: EXPR T_PLUS TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 3 (EXPR)
+
+
+State 21
+
+    4 EXPR: EXPR T_MINUS TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 4 (EXPR)
+
+
+State 22
+
+    6 TERM: TERM T_TIMES FACTOR .
+
+    $default  reduce using rule 6 (TERM)
+
+
+State 23
+
+    7 TERM: TERM T_DIVIDE FACTOR .
+
+    $default  reduce using rule 7 (TERM)
diff --git a/c_parser/src/c_lexer.cpp b/c_parser/src/c_lexer.cpp
deleted file mode 100644
index e01d73f..0000000
--- a/c_parser/src/c_lexer.cpp
+++ /dev/null
@@ -1,7 +0,0 @@
-#include "c_lexer.hpp"
-
-std::string toJson(const std::string& classType, const std::string& text, const std::string& strLine, const std::string& srcCol, const std::string& srcLine, const std::string& fName) {
-	std::string tmp = "{\"Class\":\"" + classType + "\", \"Text\":\"" + text + "\", \"StreamLine\":" + strLine + ", \"SourceFile\":\"" + fName + "\", \"SourceLine\":" + srcLine + ", \"SourceCol\":" + srcCol + "}";
-
-	return tmp;
-}
diff --git a/c_parser/src/c_lexer.flex b/c_parser/src/c_lexer.flex
index c2a42c4..b8a7e8a 100644
--- a/c_parser/src/c_lexer.flex
+++ b/c_parser/src/c_lexer.flex
@@ -1,131 +1,36 @@
 %option noyywrap
 
 %{
+// Avoid error "error: �fileno� was not declared in this scope"
+extern "C" int fileno(FILE *stream);
 
-#include "c_lexer.hpp"
-
-#include <sstream>
-#include <stdlib.h>
-
-int lineCount = 1;
-int spaceCount = 1;
-int sourceLineCount = 1;
-
-std::string fileName;
+#include "c_parser.tab.hpp"
 
 %}
 
-KEYWORD auto|double|int|struct|break|else|long|switch|case|enum|register|typedef|char|extern|return|union|const|float|short|unsigned|continue|for|signed|void|default|goto|sizeof|volatile|do|if|static|while
-
-IDENTIFIER [_a-zA-Z][_a-zA-Z0-9]*
-
-OPERATOR [.][.][.]|[<>][<>][=]|[-][-]|[+][+]|[|][|]|[#][#]|[&][&]|[+\-*\/<>=!%^|&][=]|[<][<]|[->][>]|[<>&=+\/\-*(){}\[\]\.,%~!?:|^;]
-
-FRACTIONALCONSTANT (([0-9]*\.[0-9]+)|([0-9]+\.))
-EXPONENTPART ([eE][+-]?[0-9]+)
-
-FLOATINGSUFFIX ([flFL])
-INTEGERSUFFIX ([uU][lL]|[lL][uU]|[uUlL])
-
-DECIMALCONSTANT ([1-9][0-9]*)
-OCTALCONSTANT ([0][0-7]*)
-HEXCONSTANT ([0][xX][0-9A-Fa-f]+)
-
-CHARCONSTANT ('(([\\]['])|([^']))+')
-
-STRINGLITERAL ["](([\\]["])|([^"]))*["]
-
-NEWLINE (\r\n?|\n)
-
-WHITESPACE [ ]
-
-TAB \t
-
-PREPROC [#][ ][0-9]+[ ]{STRINGLITERAL}[ 0-9]*
-
-ALL .
-
 %%
+[*]             { return T_TIMES; }
+[+]             { return T_PLUS; }
+[/]             { return T_DIVIDE; }
+[-]             { return T_MINUS; }
 
-{KEYWORD} {
-    yylval = new std::string(yytext);
-    return Keyword;
-}
+[(]             { return T_LBRACKET; }
+[)]             { return T_RBRACKET; }
 
-{IDENTIFIER} {
-    yylval = new std::string(yytext);
-    return Identifier;
-}
+log             { return T_LOG;   }
+exp             { return T_EXP; }
+sqrt            { return T_SQRT; }
 
-{OPERATOR} {
-    yylval = new std::string(yytext);
-    return Operator;
-}
+[-]?[0-9]+([.][0-9]*)? { yylval.number=strtod(yytext, 0); return T_NUMBER; }
+[a-z]+          { yylval.string=new std::string(yytext); return T_VARIABLE; }
 
-{FRACTIONALCONSTANT}{EXPONENTPART}?{FLOATINGSUFFIX}? {
-    yylval = new std::string(yytext);
-    return Constant;
-}
-
-([0-9]+){EXPONENTPART}{FLOATINGSUFFIX}? {
-    yylval = new std::string(yytext);
-    return Constant;
-}
+[ \t\r\n]+		{;}
 
-{HEXCONSTANT}{INTEGERSUFFIX}? {
-    yylval = new std::string(yytext);
-    return Constant;
-}
-
-{DECIMALCONSTANT}{INTEGERSUFFIX}? {
-    yylval = new std::string(yytext);
-    return Constant;
-}
-
-{OCTALCONSTANT}{INTEGERSUFFIX}? {
-    yylval = new std::string(yytext);
-    return Constant;
-}
-
-{CHARCONSTANT} {
-    std::string tmp(yytext);
-    yylval = new std::string(tmp.substr(1, tmp.length()-2));
-    return Constant;
-}
-
-{STRINGLITERAL} {
-    std::string tmp(yytext);
-    yylval = new std::string(tmp.substr(1, tmp.length()-2));
-    return StringLiteral;
-}
-
-{NEWLINE} {
-    spaceCount = 1;
-    lineCount++;
-    sourceLineCount++;
-}
-
-{WHITESPACE} {
-    spaceCount++;
-}
-
-{PREPROC} {
-    int srcLineInt;
-
-    yylval = new std::string(yytext);
-    std::stringstream preProcLine((*yylval).substr(1, (*yylval).length()));
-    preProcLine >> srcLineInt >> fileName;
-    sourceLineCount = srcLineInt - 1;
-    fileName = fileName.substr(1, fileName.length() - 2);
-}
-
-{TAB} {
-    spaceCount += 8;
-}
+.               { fprintf(stderr, "Invalid token\n"); exit(1); }
+%%
 
-{ALL} {
-    yylval = new std::string(yytext);
-    return Invalid;
+void yyerror (char const *s)
+{
+  fprintf (stderr, "Parse error : %s\n", s);
+  exit(1);
 }
-
-%%
diff --git a/c_parser/src/c_lexer.yy.cpp b/c_parser/src/c_lexer.yy.cpp
deleted file mode 100644
index 041cd31..0000000
--- a/c_parser/src/c_lexer.yy.cpp
+++ /dev/null
@@ -1,2095 +0,0 @@
-#line 1 "src/c_lexer.yy.cpp"
-
-#line 3 "src/c_lexer.yy.cpp"
-
-#define  YY_INT_ALIGNED short int
-
-/* A lexical scanner generated by flex */
-
-#define FLEX_SCANNER
-#define YY_FLEX_MAJOR_VERSION 2
-#define YY_FLEX_MINOR_VERSION 6
-#define YY_FLEX_SUBMINOR_VERSION 3
-#if YY_FLEX_SUBMINOR_VERSION > 0
-#define FLEX_BETA
-#endif
-
-    #define yy_create_buffer yy_create_buffer
-
-    #define yy_delete_buffer yy_delete_buffer
-
-    #define yy_scan_buffer yy_scan_buffer
-
-    #define yy_scan_string yy_scan_string
-
-    #define yy_scan_bytes yy_scan_bytes
-
-    #define yy_init_buffer yy_init_buffer
-
-    #define yy_flush_buffer yy_flush_buffer
-
-    #define yy_load_buffer_state yy_load_buffer_state
-
-    #define yy_switch_to_buffer yy_switch_to_buffer
-
-    #define yypush_buffer_state yypush_buffer_state
-
-    #define yypop_buffer_state yypop_buffer_state
-
-    #define yyensure_buffer_stack yyensure_buffer_stack
-
-    #define yylex yylex
-
-    #define yyrestart yyrestart
-
-    #define yylex_init yylex_init
-
-    #define yylex_init_extra yylex_init_extra
-
-    #define yylex_destroy yylex_destroy
-
-    #define yyget_debug yyget_debug
-
-    #define yyset_debug yyset_debug
-
-    #define yyget_extra yyget_extra
-
-    #define yyset_extra yyset_extra
-
-    #define yyget_in yyget_in
-
-    #define yyset_in yyset_in
-
-    #define yyget_out yyget_out
-
-    #define yyset_out yyset_out
-
-    #define yyget_leng yyget_leng
-
-    #define yyget_text yyget_text
-
-    #define yyget_lineno yyget_lineno
-
-    #define yyset_lineno yyset_lineno
-
-    #define yywrap yywrap
-
-    #define yyalloc yyalloc
-
-    #define yyrealloc yyrealloc
-
-    #define yyfree yyfree
-
-    #define yytext yytext
-
-    #define yyleng yyleng
-
-    #define yyin yyin
-
-    #define yyout yyout
-
-    #define yy_flex_debug yy_flex_debug
-
-    #define yylineno yylineno
-
-/* First, we deal with  platform-specific or compiler-specific issues. */
-
-/* begin standard C headers. */
-#include <stdio.h>
-#include <string.h>
-#include <errno.h>
-#include <stdlib.h>
-
-/* end standard C headers. */
-
-/* flex integer type definitions */
-
-#ifndef FLEXINT_H
-#define FLEXINT_H
-
-/* C99 systems have <inttypes.h>. Non-C99 systems may or may not. */
-
-#if defined (__STDC_VERSION__) && __STDC_VERSION__ >= 199901L
-
-/* C99 says to define __STDC_LIMIT_MACROS before including stdint.h,
- * if you want the limit (max/min) macros for int types. 
- */
-#ifndef __STDC_LIMIT_MACROS
-#define __STDC_LIMIT_MACROS 1
-#endif
-
-#include <inttypes.h>
-typedef int8_t flex_int8_t;
-typedef uint8_t flex_uint8_t;
-typedef int16_t flex_int16_t;
-typedef uint16_t flex_uint16_t;
-typedef int32_t flex_int32_t;
-typedef uint32_t flex_uint32_t;
-#else
-typedef signed char flex_int8_t;
-typedef short int flex_int16_t;
-typedef int flex_int32_t;
-typedef unsigned char flex_uint8_t; 
-typedef unsigned short int flex_uint16_t;
-typedef unsigned int flex_uint32_t;
-
-/* Limits of integral types. */
-#ifndef INT8_MIN
-#define INT8_MIN               (-128)
-#endif
-#ifndef INT16_MIN
-#define INT16_MIN              (-32767-1)
-#endif
-#ifndef INT32_MIN
-#define INT32_MIN              (-2147483647-1)
-#endif
-#ifndef INT8_MAX
-#define INT8_MAX               (127)
-#endif
-#ifndef INT16_MAX
-#define INT16_MAX              (32767)
-#endif
-#ifndef INT32_MAX
-#define INT32_MAX              (2147483647)
-#endif
-#ifndef UINT8_MAX
-#define UINT8_MAX              (255U)
-#endif
-#ifndef UINT16_MAX
-#define UINT16_MAX             (65535U)
-#endif
-#ifndef UINT32_MAX
-#define UINT32_MAX             (4294967295U)
-#endif
-
-#endif /* ! C99 */
-
-#endif /* ! FLEXINT_H */
-
-/* TODO: this is always defined, so inline it */
-#define yyconst const
-
-#if defined(__GNUC__) && __GNUC__ >= 3
-#define yynoreturn __attribute__((__noreturn__))
-#else
-#define yynoreturn
-#endif
-
-/* Returned upon end-of-file. */
-#define YY_NULL 0
-
-/* Promotes a possibly negative, possibly signed char to an
- *   integer in range [0..255] for use as an array index.
- */
-#define YY_SC_TO_UI(c) ((YY_CHAR) (c))
-
-/* Enter a start condition.  This macro really ought to take a parameter,
- * but we do it the disgusting crufty way forced on us by the ()-less
- * definition of BEGIN.
- */
-#define BEGIN (yy_start) = 1 + 2 *
-/* Translate the current start state into a value that can be later handed
- * to BEGIN to return to the state.  The YYSTATE alias is for lex
- * compatibility.
- */
-#define YY_START (((yy_start) - 1) / 2)
-#define YYSTATE YY_START
-/* Action number for EOF rule of a given start state. */
-#define YY_STATE_EOF(state) (YY_END_OF_BUFFER + state + 1)
-/* Special action meaning "start processing a new file". */
-#define YY_NEW_FILE yyrestart(yyin  )
-#define YY_END_OF_BUFFER_CHAR 0
-
-/* Size of default input buffer. */
-#ifndef YY_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k.
- * Moreover, YY_BUF_SIZE is 2*YY_READ_BUF_SIZE in the general case.
- * Ditto for the __ia64__ case accordingly.
- */
-#define YY_BUF_SIZE 32768
-#else
-#define YY_BUF_SIZE 16384
-#endif /* __ia64__ */
-#endif
-
-/* The state buf must be large enough to hold one state per character in the main buffer.
- */
-#define YY_STATE_BUF_SIZE   ((YY_BUF_SIZE + 2) * sizeof(yy_state_type))
-
-#ifndef YY_TYPEDEF_YY_BUFFER_STATE
-#define YY_TYPEDEF_YY_BUFFER_STATE
-typedef struct yy_buffer_state *YY_BUFFER_STATE;
-#endif
-
-#ifndef YY_TYPEDEF_YY_SIZE_T
-#define YY_TYPEDEF_YY_SIZE_T
-typedef size_t yy_size_t;
-#endif
-
-extern int yyleng;
-
-extern FILE *yyin, *yyout;
-
-#define EOB_ACT_CONTINUE_SCAN 0
-#define EOB_ACT_END_OF_FILE 1
-#define EOB_ACT_LAST_MATCH 2
-    
-    #define YY_LESS_LINENO(n)
-    #define YY_LINENO_REWIND_TO(ptr)
-    
-/* Return all but the first "n" matched characters back to the input stream. */
-#define yyless(n) \
-	do \
-		{ \
-		/* Undo effects of setting up yytext. */ \
-        int yyless_macro_arg = (n); \
-        YY_LESS_LINENO(yyless_macro_arg);\
-		*yy_cp = (yy_hold_char); \
-		YY_RESTORE_YY_MORE_OFFSET \
-		(yy_c_buf_p) = yy_cp = yy_bp + yyless_macro_arg - YY_MORE_ADJ; \
-		YY_DO_BEFORE_ACTION; /* set up yytext again */ \
-		} \
-	while ( 0 )
-#define unput(c) yyunput( c, (yytext_ptr)  )
-
-#ifndef YY_STRUCT_YY_BUFFER_STATE
-#define YY_STRUCT_YY_BUFFER_STATE
-struct yy_buffer_state
-	{
-	FILE *yy_input_file;
-
-	char *yy_ch_buf;		/* input buffer */
-	char *yy_buf_pos;		/* current position in input buffer */
-
-	/* Size of input buffer in bytes, not including room for EOB
-	 * characters.
-	 */
-	int yy_buf_size;
-
-	/* Number of characters read into yy_ch_buf, not including EOB
-	 * characters.
-	 */
-	int yy_n_chars;
-
-	/* Whether we "own" the buffer - i.e., we know we created it,
-	 * and can realloc() it to grow it, and should free() it to
-	 * delete it.
-	 */
-	int yy_is_our_buffer;
-
-	/* Whether this is an "interactive" input source; if so, and
-	 * if we're using stdio for input, then we want to use getc()
-	 * instead of fread(), to make sure we stop fetching input after
-	 * each newline.
-	 */
-	int yy_is_interactive;
-
-	/* Whether we're considered to be at the beginning of a line.
-	 * If so, '^' rules will be active on the next match, otherwise
-	 * not.
-	 */
-	int yy_at_bol;
-
-    int yy_bs_lineno; /**< The line count. */
-    int yy_bs_column; /**< The column count. */
-
-	/* Whether to try to fill the input buffer when we reach the
-	 * end of it.
-	 */
-	int yy_fill_buffer;
-
-	int yy_buffer_status;
-
-#define YY_BUFFER_NEW 0
-#define YY_BUFFER_NORMAL 1
-	/* When an EOF's been seen but there's still some text to process
-	 * then we mark the buffer as YY_EOF_PENDING, to indicate that we
-	 * shouldn't try reading from the input source any more.  We might
-	 * still have a bunch of tokens to match, though, because of
-	 * possible backing-up.
-	 *
-	 * When we actually see the EOF, we change the status to "new"
-	 * (via yyrestart()), so that the user can continue scanning by
-	 * just pointing yyin at a new input file.
-	 */
-#define YY_BUFFER_EOF_PENDING 2
-
-	};
-#endif /* !YY_STRUCT_YY_BUFFER_STATE */
-
-/* Stack of input buffers. */
-static size_t yy_buffer_stack_top = 0; /**< index of top of stack. */
-static size_t yy_buffer_stack_max = 0; /**< capacity of stack. */
-static YY_BUFFER_STATE * yy_buffer_stack = NULL; /**< Stack as an array. */
-
-/* We provide macros for accessing buffer states in case in the
- * future we want to put the buffer states in a more general
- * "scanner state".
- *
- * Returns the top of the stack, or NULL.
- */
-#define YY_CURRENT_BUFFER ( (yy_buffer_stack) \
-                          ? (yy_buffer_stack)[(yy_buffer_stack_top)] \
-                          : NULL)
-/* Same as previous macro, but useful when we know that the buffer stack is not
- * NULL or when we need an lvalue. For internal use only.
- */
-#define YY_CURRENT_BUFFER_LVALUE (yy_buffer_stack)[(yy_buffer_stack_top)]
-
-/* yy_hold_char holds the character lost when yytext is formed. */
-static char yy_hold_char;
-static int yy_n_chars;		/* number of characters read into yy_ch_buf */
-int yyleng;
-
-/* Points to current character in buffer. */
-static char *yy_c_buf_p = NULL;
-static int yy_init = 0;		/* whether we need to initialize */
-static int yy_start = 0;	/* start state number */
-
-/* Flag which is used to allow yywrap()'s to do buffer switches
- * instead of setting up a fresh yyin.  A bit of a hack ...
- */
-static int yy_did_buffer_switch_on_eof;
-
-void yyrestart ( FILE *input_file  );
-void yy_switch_to_buffer ( YY_BUFFER_STATE new_buffer  );
-YY_BUFFER_STATE yy_create_buffer ( FILE *file, int size  );
-void yy_delete_buffer ( YY_BUFFER_STATE b  );
-void yy_flush_buffer ( YY_BUFFER_STATE b  );
-void yypush_buffer_state ( YY_BUFFER_STATE new_buffer  );
-void yypop_buffer_state ( void );
-
-static void yyensure_buffer_stack ( void );
-static void yy_load_buffer_state ( void );
-static void yy_init_buffer ( YY_BUFFER_STATE b, FILE *file  );
-#define YY_FLUSH_BUFFER yy_flush_buffer(YY_CURRENT_BUFFER )
-
-YY_BUFFER_STATE yy_scan_buffer ( char *base, yy_size_t size  );
-YY_BUFFER_STATE yy_scan_string ( const char *yy_str  );
-YY_BUFFER_STATE yy_scan_bytes ( const char *bytes, int len  );
-
-void *yyalloc ( yy_size_t  );
-void *yyrealloc ( void *, yy_size_t  );
-void yyfree ( void *  );
-
-#define yy_new_buffer yy_create_buffer
-#define yy_set_interactive(is_interactive) \
-	{ \
-	if ( ! YY_CURRENT_BUFFER ){ \
-        yyensure_buffer_stack (); \
-		YY_CURRENT_BUFFER_LVALUE =    \
-            yy_create_buffer(yyin,YY_BUF_SIZE ); \
-	} \
-	YY_CURRENT_BUFFER_LVALUE->yy_is_interactive = is_interactive; \
-	}
-#define yy_set_bol(at_bol) \
-	{ \
-	if ( ! YY_CURRENT_BUFFER ){\
-        yyensure_buffer_stack (); \
-		YY_CURRENT_BUFFER_LVALUE =    \
-            yy_create_buffer(yyin,YY_BUF_SIZE ); \
-	} \
-	YY_CURRENT_BUFFER_LVALUE->yy_at_bol = at_bol; \
-	}
-#define YY_AT_BOL() (YY_CURRENT_BUFFER_LVALUE->yy_at_bol)
-
-/* Begin user sect3 */
-
-#define yywrap() (/*CONSTCOND*/1)
-#define YY_SKIP_YYWRAP
-typedef flex_uint8_t YY_CHAR;
-
-FILE *yyin = NULL, *yyout = NULL;
-
-typedef int yy_state_type;
-
-extern int yylineno;
-int yylineno = 1;
-
-extern char *yytext;
-#ifdef yytext_ptr
-#undef yytext_ptr
-#endif
-#define yytext_ptr yytext
-
-static yy_state_type yy_get_previous_state ( void );
-static yy_state_type yy_try_NUL_trans ( yy_state_type current_state  );
-static int yy_get_next_buffer ( void );
-static void yynoreturn yy_fatal_error ( const char* msg  );
-
-/* Done after the current pattern has been matched and before the
- * corresponding action - sets up yytext.
- */
-#define YY_DO_BEFORE_ACTION \
-	(yytext_ptr) = yy_bp; \
-	yyleng = (int) (yy_cp - yy_bp); \
-	(yy_hold_char) = *yy_cp; \
-	*yy_cp = '\0'; \
-	(yy_c_buf_p) = yy_cp;
-#define YY_NUM_RULES 16
-#define YY_END_OF_BUFFER 17
-/* This struct is not used in this scanner,
-   but its presence is necessary. */
-struct yy_trans_info
-	{
-	flex_int32_t yy_verify;
-	flex_int32_t yy_nxt;
-	};
-static const flex_int16_t yy_accept[184] =
-    {   0,
-        0,    0,   17,   15,   14,   11,   11,   12,    3,   15,
-       15,    3,   15,    3,    3,    3,    3,    8,    7,    3,
-        3,    2,    2,    2,    2,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    2,    2,    2,    3,   11,    3,
-        0,   10,    0,    0,    0,    0,    0,    4,    4,    8,
-        0,    0,    8,    8,    0,    7,    7,    7,    3,    0,
-        2,    2,    2,    2,    2,    2,    2,    1,    2,    2,
-        2,    2,    2,    2,    1,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    2,    2,   10,    0,    9,    9,
-        0,    4,    0,    5,    8,    6,    7,    2,    2,    2,
-
-        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    0,    0,    4,    5,    6,    6,
-        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    2,    2,    2,    2,    2,    2,
-        0,    6,    2,    2,    2,    2,    2,    2,    2,    2,
-        2,    2,    2,    2,    2,    2,    0,   13,    0,    2,
-        2,    2,    2,    2,    2,   13,   13,    2,    2,    2,
-        2,   13,    0
-    } ;
-
-static const YY_CHAR yy_ec[256] =
-    {   0,
-        1,    1,    1,    1,    1,    1,    1,    1,    2,    3,
-        1,    1,    4,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    5,    6,    7,    8,    1,    6,    9,   10,   11,
-       11,    6,   12,   11,   13,   14,    6,   15,   16,   16,
-       16,   16,   16,   16,   16,   17,   17,   11,   11,   18,
-       19,   20,   11,    1,   21,   21,   21,   21,   22,   23,
-       24,   24,   24,   24,   24,   25,   24,   24,   24,   24,
-       24,   24,   24,   24,   26,   24,   24,   27,   24,   24,
-       11,   28,   11,    6,   24,    1,   29,   30,   31,   32,
-
-       33,   34,   35,   36,   37,   24,   38,   39,   40,   41,
-       42,   43,   24,   44,   45,   46,   47,   48,   49,   50,
-       51,   52,   11,   53,   11,   11,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1
-    } ;
-
-static const YY_CHAR yy_meta[54] =
-    {   0,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    2,
-        1,    1,    1,    1,    3,    3,    3,    1,    1,    1,
-        3,    3,    3,    4,    4,    4,    4,    1,    3,    3,
-        3,    3,    3,    3,    4,    4,    4,    4,    4,    4,
-        4,    4,    4,    4,    4,    4,    4,    4,    4,    4,
-        4,    4,    1
-    } ;
-
-static const flex_int16_t yy_base[189] =
-    {   0,
-        0,    0,  354,  355,  355,  355,  350,  355,  333,   47,
-       50,   47,  323,  355,   45,   48,   55,   62,   99,   62,
-       72,    0,  303,  305,   57,   32,   44,   20,  306,   62,
-      305,  313,   61,  294,  303,  301,  306,   81,  355,  355,
-       95,  355,   98,  102,   94,  101,  327,  132,    0,   81,
-      128,  124,   80,  128,    0,    0,  104,  131,  321,  320,
-        0,  292,  304,  291,  306,  293,  299,  285,  286,  283,
-      283,  286,  283,  280,    0,  279,  283,  117,  281,  123,
-       91,  285,  278,  123,  125,  283,  152,  167,  355,  159,
-      161,  355,  173,  176,  355,  169,  355,  277,  289,  284,
-
-      272,  140,  286,  284,  280,  272,  278,  281,  267,  273,
-      270,  259,  261,  263,  270,  256,  254,  254,  266,  256,
-      260,  264,  266,  255,  286,  181,  188,  355,  153,  181,
-      254,  245,  253,  242,  249,  243,  240,  240,  240,  237,
-      249,  239,  243,  248,  247,  245,  235,  240,  220,  226,
-      174,  355,  217,  217,  222,  213,  207,  211,  219,  216,
-      212,  196,  205,  207,  197,  198,  200,  209,  202,  182,
-      177,  186,  184,  184,  173,  216,  229,  100,   84,   41,
-       30,  232,  355,  260,  264,  266,   57,  270
-    } ;
-
-static const flex_int16_t yy_def[189] =
-    {   0,
-      183,    1,  183,  183,  183,  183,  183,  183,  183,  184,
-      183,  183,  185,  183,  183,  183,  183,  183,  183,  183,
-      183,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  183,  183,  183,
-      184,  183,  184,  183,  185,  185,  183,  183,   48,   18,
-      183,  183,  183,  183,  187,   19,  183,  183,  183,  183,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  184,  183,  183,  185,
-      183,  183,  183,  183,  183,  187,  183,  186,  186,  186,
-
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  183,  183,  183,  183,  183,  183,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  186,  186,  186,  186,
-      188,  183,  186,  186,  186,  186,  186,  186,  186,  186,
-      186,  186,  186,  186,  186,  186,  188,  183,  188,  186,
-      186,  186,  186,  186,  186,  183,  188,  186,  186,  186,
-      186,  188,    0,  183,  183,  183,  183,  183
-    } ;
-
-static const flex_int16_t yy_nxt[409] =
-    {   0,
-        4,    5,    6,    7,    8,    9,   10,   11,   12,   13,
-       14,   15,   16,   17,   18,   19,   19,   20,    9,   21,
-       22,   22,   22,   22,   22,   22,   22,    4,   23,   24,
-       25,   26,   27,   28,   29,   22,   30,   22,   31,   22,
-       22,   22,   22,   32,   33,   34,   35,   36,   37,   22,
-       22,   22,   38,   42,   44,   40,   40,   40,   72,   96,
-       40,   73,   75,   40,   67,   40,   40,   40,   47,   48,
-       48,   48,   75,   68,   43,   49,   50,   50,   51,   59,
-       40,   60,   69,   52,   70,   64,   53,   54,   55,   60,
-       40,   59,   65,   71,   52,   75,   79,   80,   66,   40,
-
-       53,   42,   76,   89,   87,   95,   81,  183,   54,   82,
-       90,   55,   49,   56,   56,   56,   88,   88,   88,  116,
-       52,   46,   43,   57,   58,   43,   95,   75,   46,   97,
-      183,   52,   75,   40,  117,   93,   93,   57,   94,   94,
-       94,   49,   51,   51,   51,   58,   48,   48,   48,   52,
-       97,  111,   95,   91,   92,   97,   92,  114,   42,  120,
-       52,  122,  112,  123,   91,   92,   95,  121,   89,   97,
-       92,  125,  126,  126,  115,  127,  127,  127,  152,   43,
-      168,   88,   88,   88,  132,  133,   46,   94,   94,   94,
-       94,   94,   94,  129,  130,  127,  127,  127,  128,  152,
-
-      128,  169,  127,  127,  127,  152,  168,  129,  177,  128,
-       92,  181,   92,  176,  128,  130,  180,   75,  179,  152,
-      176,   92,   75,  176,  176,  176,   92,  169,  178,  169,
-      176,  176,  176,  182,  175,  168,  182,  174,  168,  173,
-       75,   75,   75,  182,  182,  182,  182,  182,  182,   75,
-       75,   75,  172,   75,   75,  171,  169,  170,   75,  169,
-       41,   41,   41,   41,   45,  166,   45,   45,   61,   61,
-      167,  167,  167,  167,  165,   75,  164,  163,  162,  161,
-      160,  159,   75,  158,  157,   75,  156,  155,  154,  153,
-       75,   75,  151,  150,  149,   75,  148,  147,  146,  145,
-
-      144,  143,  142,  141,  140,  139,  138,   75,   75,  137,
-      136,   75,   75,  135,  134,   75,   75,  131,   75,  124,
-      119,  118,  113,  110,   75,  109,   75,  108,  107,  106,
-      105,  104,  103,  102,  101,  100,   99,   98,   40,   40,
-       40,   86,   85,   84,   83,   78,   77,   74,   63,   62,
-       46,   40,   39,  183,    3,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-
-      183,  183,  183,  183,  183,  183,  183,  183
-    } ;
-
-static const flex_int16_t yy_chk[409] =
-    {   0,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,    1,    1,    1,    1,    1,    1,    1,
-        1,    1,    1,   10,   11,   12,   15,   11,   28,  187,
-       16,   28,  181,   15,   26,   12,   16,   16,   17,   17,
-       17,   17,  180,   26,   10,   18,   18,   18,   18,   20,
-       20,   20,   27,   18,   27,   25,   18,   18,   18,   21,
-       21,   21,   25,   27,   18,   30,   33,   33,   25,   38,
-
-       18,   41,   30,   45,   43,   53,   33,   50,   18,   33,
-       46,   18,   19,   19,   19,   19,   44,   44,   44,   81,
-       19,   45,   41,   19,   19,   43,   53,  179,   46,   57,
-       50,   19,  178,   38,   81,   52,   52,   19,   52,   52,
-       52,   51,   51,   51,   51,   19,   48,   48,   48,   51,
-       57,   78,   54,   48,   48,   58,   48,   80,   87,   84,
-       51,   85,   78,   85,   48,   48,   54,   84,   90,   58,
-       48,   88,   91,   91,   80,   91,   91,   91,  129,   87,
-      151,   88,   88,   88,  102,  102,   90,   93,   93,   93,
-       94,   94,   94,   96,   96,  126,  126,  126,   94,  129,
-
-       94,  151,  127,  127,  127,  130,  167,   96,  169,   94,
-      127,  175,  127,  168,   94,   96,  174,  173,  172,  130,
-      176,  127,  171,  168,  168,  168,  127,  167,  170,  169,
-      176,  176,  176,  177,  166,  177,  182,  165,  182,  164,
-      163,  162,  161,  177,  177,  177,  182,  182,  182,  160,
-      159,  158,  157,  156,  155,  154,  177,  153,  150,  182,
-      184,  184,  184,  184,  185,  149,  185,  185,  186,  186,
-      188,  188,  188,  188,  148,  147,  146,  145,  144,  143,
-      142,  141,  140,  139,  138,  137,  136,  135,  134,  133,
-      132,  131,  125,  124,  123,  122,  121,  120,  119,  118,
-
-      117,  116,  115,  114,  113,  112,  111,  110,  109,  108,
-      107,  106,  105,  104,  103,  101,  100,   99,   98,   86,
-       83,   82,   79,   77,   76,   74,   73,   72,   71,   70,
-       69,   68,   67,   66,   65,   64,   63,   62,   60,   59,
-       47,   37,   36,   35,   34,   32,   31,   29,   24,   23,
-       13,    9,    7,    3,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-      183,  183,  183,  183,  183,  183,  183,  183,  183,  183,
-
-      183,  183,  183,  183,  183,  183,  183,  183
-    } ;
-
-static yy_state_type yy_last_accepting_state;
-static char *yy_last_accepting_cpos;
-
-extern int yy_flex_debug;
-int yy_flex_debug = 0;
-
-/* The intent behind this definition is that it'll catch
- * any uses of REJECT which flex missed.
- */
-#define REJECT reject_used_but_not_detected
-#define yymore() yymore_used_but_not_detected
-#define YY_MORE_ADJ 0
-#define YY_RESTORE_YY_MORE_OFFSET
-char *yytext;
-#line 1 "src/c_lexer.flex"
-#line 4 "src/c_lexer.flex"
-
-#include "c_lexer.hpp"
-
-#include <sstream>
-#include <stdlib.h>
-
-int lineCount = 1;
-int spaceCount = 1;
-int sourceLineCount = 1;
-
-std::string fileName;
-
-#line 679 "src/c_lexer.yy.cpp"
-#line 680 "src/c_lexer.yy.cpp"
-
-#define INITIAL 0
-
-#ifndef YY_NO_UNISTD_H
-/* Special case for "unistd.h", since it is non-ANSI. We include it way
- * down here because we want the user's section 1 to have been scanned first.
- * The user has a chance to override it with an option.
- */
-#include <unistd.h>
-#endif
-
-#ifndef YY_EXTRA_TYPE
-#define YY_EXTRA_TYPE void *
-#endif
-
-static int yy_init_globals ( void );
-
-/* Accessor methods to globals.
-   These are made visible to non-reentrant scanners for convenience. */
-
-int yylex_destroy ( void );
-
-int yyget_debug ( void );
-
-void yyset_debug ( int debug_flag  );
-
-YY_EXTRA_TYPE yyget_extra ( void );
-
-void yyset_extra ( YY_EXTRA_TYPE user_defined  );
-
-FILE *yyget_in ( void );
-
-void yyset_in  ( FILE * _in_str  );
-
-FILE *yyget_out ( void );
-
-void yyset_out  ( FILE * _out_str  );
-
-			int yyget_leng ( void );
-
-char *yyget_text ( void );
-
-int yyget_lineno ( void );
-
-void yyset_lineno ( int _line_number  );
-
-/* Macros after this point can all be overridden by user definitions in
- * section 1.
- */
-
-#ifndef YY_SKIP_YYWRAP
-#ifdef __cplusplus
-extern "C" int yywrap ( void );
-#else
-extern int yywrap ( void );
-#endif
-#endif
-
-#ifndef YY_NO_UNPUT
-    
-    static void yyunput ( int c, char *buf_ptr  );
-    
-#endif
-
-#ifndef yytext_ptr
-static void yy_flex_strncpy ( char *, const char *, int );
-#endif
-
-#ifdef YY_NEED_STRLEN
-static int yy_flex_strlen ( const char * );
-#endif
-
-#ifndef YY_NO_INPUT
-#ifdef __cplusplus
-static int yyinput ( void );
-#else
-static int input ( void );
-#endif
-
-#endif
-
-/* Amount of stuff to slurp up with each read. */
-#ifndef YY_READ_BUF_SIZE
-#ifdef __ia64__
-/* On IA-64, the buffer size is 16k, not 8k */
-#define YY_READ_BUF_SIZE 16384
-#else
-#define YY_READ_BUF_SIZE 8192
-#endif /* __ia64__ */
-#endif
-
-/* Copy whatever the last rule matched to the standard output. */
-#ifndef ECHO
-/* This used to be an fputs(), but since the string might contain NUL's,
- * we now use fwrite().
- */
-#define ECHO do { if (fwrite( yytext, (size_t) yyleng, 1, yyout )) {} } while (0)
-#endif
-
-/* Gets input and stuffs it into "buf".  number of characters read, or YY_NULL,
- * is returned in "result".
- */
-#ifndef YY_INPUT
-#define YY_INPUT(buf,result,max_size) \
-	if ( YY_CURRENT_BUFFER_LVALUE->yy_is_interactive ) \
-		{ \
-		int c = '*'; \
-		int n; \
-		for ( n = 0; n < max_size && \
-			     (c = getc( yyin )) != EOF && c != '\n'; ++n ) \
-			buf[n] = (char) c; \
-		if ( c == '\n' ) \
-			buf[n++] = (char) c; \
-		if ( c == EOF && ferror( yyin ) ) \
-			YY_FATAL_ERROR( "input in flex scanner failed" ); \
-		result = n; \
-		} \
-	else \
-		{ \
-		errno=0; \
-		while ( (result = (int) fread(buf, 1, (yy_size_t) max_size, yyin)) == 0 && ferror(yyin)) \
-			{ \
-			if( errno != EINTR) \
-				{ \
-				YY_FATAL_ERROR( "input in flex scanner failed" ); \
-				break; \
-				} \
-			errno=0; \
-			clearerr(yyin); \
-			} \
-		}\
-\
-
-#endif
-
-/* No semi-colon after return; correct usage is to write "yyterminate();" -
- * we don't want an extra ';' after the "return" because that will cause
- * some compilers to complain about unreachable statements.
- */
-#ifndef yyterminate
-#define yyterminate() return YY_NULL
-#endif
-
-/* Number of entries by which start-condition stack grows. */
-#ifndef YY_START_STACK_INCR
-#define YY_START_STACK_INCR 25
-#endif
-
-/* Report a fatal error. */
-#ifndef YY_FATAL_ERROR
-#define YY_FATAL_ERROR(msg) yy_fatal_error( msg )
-#endif
-
-/* end tables serialization structures and prototypes */
-
-/* Default declaration of generated scanner - a define so the user can
- * easily add parameters.
- */
-#ifndef YY_DECL
-#define YY_DECL_IS_OURS 1
-
-extern int yylex (void);
-
-#define YY_DECL int yylex (void)
-#endif /* !YY_DECL */
-
-/* Code executed at the beginning of each rule, after yytext and yyleng
- * have been set up.
- */
-#ifndef YY_USER_ACTION
-#define YY_USER_ACTION
-#endif
-
-/* Code executed at the end of each rule. */
-#ifndef YY_BREAK
-#define YY_BREAK /*LINTED*/break;
-#endif
-
-#define YY_RULE_SETUP \
-	YY_USER_ACTION
-
-/** The main scanner function which does all the work.
- */
-YY_DECL
-{
-	yy_state_type yy_current_state;
-	char *yy_cp, *yy_bp;
-	int yy_act;
-    
-	if ( !(yy_init) )
-		{
-		(yy_init) = 1;
-
-#ifdef YY_USER_INIT
-		YY_USER_INIT;
-#endif
-
-		if ( ! (yy_start) )
-			(yy_start) = 1;	/* first start state */
-
-		if ( ! yyin )
-			yyin = stdin;
-
-		if ( ! yyout )
-			yyout = stdout;
-
-		if ( ! YY_CURRENT_BUFFER ) {
-			yyensure_buffer_stack ();
-			YY_CURRENT_BUFFER_LVALUE =
-				yy_create_buffer(yyin,YY_BUF_SIZE );
-		}
-
-		yy_load_buffer_state( );
-		}
-
-	{
-#line 48 "src/c_lexer.flex"
-
-
-#line 900 "src/c_lexer.yy.cpp"
-
-	while ( /*CONSTCOND*/1 )		/* loops until end-of-file is reached */
-		{
-		yy_cp = (yy_c_buf_p);
-
-		/* Support of yytext. */
-		*yy_cp = (yy_hold_char);
-
-		/* yy_bp points to the position in yy_ch_buf of the start of
-		 * the current run.
-		 */
-		yy_bp = yy_cp;
-
-		yy_current_state = (yy_start);
-yy_match:
-		do
-			{
-			YY_CHAR yy_c = yy_ec[YY_SC_TO_UI(*yy_cp)] ;
-			if ( yy_accept[yy_current_state] )
-				{
-				(yy_last_accepting_state) = yy_current_state;
-				(yy_last_accepting_cpos) = yy_cp;
-				}
-			while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
-				{
-				yy_current_state = (int) yy_def[yy_current_state];
-				if ( yy_current_state >= 184 )
-					yy_c = yy_meta[yy_c];
-				}
-			yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
-			++yy_cp;
-			}
-		while ( yy_base[yy_current_state] != 355 );
-
-yy_find_action:
-		yy_act = yy_accept[yy_current_state];
-		if ( yy_act == 0 )
-			{ /* have to back up */
-			yy_cp = (yy_last_accepting_cpos);
-			yy_current_state = (yy_last_accepting_state);
-			yy_act = yy_accept[yy_current_state];
-			}
-
-		YY_DO_BEFORE_ACTION;
-
-do_action:	/* This label is used only to access EOF actions. */
-
-		switch ( yy_act )
-	{ /* beginning of action switch */
-			case 0: /* must back up */
-			/* undo the effects of YY_DO_BEFORE_ACTION */
-			*yy_cp = (yy_hold_char);
-			yy_cp = (yy_last_accepting_cpos);
-			yy_current_state = (yy_last_accepting_state);
-			goto yy_find_action;
-
-case 1:
-YY_RULE_SETUP
-#line 50 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Keyword;
-}
-	YY_BREAK
-case 2:
-YY_RULE_SETUP
-#line 55 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Identifier;
-}
-	YY_BREAK
-case 3:
-YY_RULE_SETUP
-#line 60 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Operator;
-}
-	YY_BREAK
-case 4:
-YY_RULE_SETUP
-#line 65 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Constant;
-}
-	YY_BREAK
-case 5:
-YY_RULE_SETUP
-#line 70 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Constant;
-}
-	YY_BREAK
-case 6:
-YY_RULE_SETUP
-#line 75 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Constant;
-}
-	YY_BREAK
-case 7:
-YY_RULE_SETUP
-#line 80 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Constant;
-}
-	YY_BREAK
-case 8:
-YY_RULE_SETUP
-#line 85 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Constant;
-}
-	YY_BREAK
-case 9:
-/* rule 9 can match eol */
-YY_RULE_SETUP
-#line 90 "src/c_lexer.flex"
-{
-    std::string tmp(yytext);
-    yylval = new std::string(tmp.substr(1, tmp.length()-2));
-    return Constant;
-}
-	YY_BREAK
-case 10:
-/* rule 10 can match eol */
-YY_RULE_SETUP
-#line 96 "src/c_lexer.flex"
-{
-    std::string tmp(yytext);
-    yylval = new std::string(tmp.substr(1, tmp.length()-2));
-    return StringLiteral;
-}
-	YY_BREAK
-case 11:
-/* rule 11 can match eol */
-YY_RULE_SETUP
-#line 102 "src/c_lexer.flex"
-{
-    spaceCount = 1;
-    lineCount++;
-    sourceLineCount++;
-}
-	YY_BREAK
-case 12:
-YY_RULE_SETUP
-#line 108 "src/c_lexer.flex"
-{
-    spaceCount++;
-}
-	YY_BREAK
-case 13:
-/* rule 13 can match eol */
-YY_RULE_SETUP
-#line 112 "src/c_lexer.flex"
-{
-    int srcLineInt;
-
-    yylval = new std::string(yytext);
-    std::stringstream preProcLine((*yylval).substr(1, (*yylval).length()));
-    preProcLine >> srcLineInt >> fileName;
-    sourceLineCount = srcLineInt - 1;
-    fileName = fileName.substr(1, fileName.length() - 2);
-}
-	YY_BREAK
-case 14:
-YY_RULE_SETUP
-#line 122 "src/c_lexer.flex"
-{
-    spaceCount += 8;
-}
-	YY_BREAK
-case 15:
-YY_RULE_SETUP
-#line 126 "src/c_lexer.flex"
-{
-    yylval = new std::string(yytext);
-    return Invalid;
-}
-	YY_BREAK
-case 16:
-YY_RULE_SETUP
-#line 131 "src/c_lexer.flex"
-ECHO;
-	YY_BREAK
-#line 1092 "src/c_lexer.yy.cpp"
-case YY_STATE_EOF(INITIAL):
-	yyterminate();
-
-	case YY_END_OF_BUFFER:
-		{
-		/* Amount of text matched not including the EOB char. */
-		int yy_amount_of_matched_text = (int) (yy_cp - (yytext_ptr)) - 1;
-
-		/* Undo the effects of YY_DO_BEFORE_ACTION. */
-		*yy_cp = (yy_hold_char);
-		YY_RESTORE_YY_MORE_OFFSET
-
-		if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_NEW )
-			{
-			/* We're scanning a new file or input source.  It's
-			 * possible that this happened because the user
-			 * just pointed yyin at a new source and called
-			 * yylex().  If so, then we have to assure
-			 * consistency between YY_CURRENT_BUFFER and our
-			 * globals.  Here is the right place to do so, because
-			 * this is the first action (other than possibly a
-			 * back-up) that will match for the new input source.
-			 */
-			(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
-			YY_CURRENT_BUFFER_LVALUE->yy_input_file = yyin;
-			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status = YY_BUFFER_NORMAL;
-			}
-
-		/* Note that here we test for yy_c_buf_p "<=" to the position
-		 * of the first EOB in the buffer, since yy_c_buf_p will
-		 * already have been incremented past the NUL character
-		 * (since all states make transitions on EOB to the
-		 * end-of-buffer state).  Contrast this with the test
-		 * in input().
-		 */
-		if ( (yy_c_buf_p) <= &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
-			{ /* This was really a NUL. */
-			yy_state_type yy_next_state;
-
-			(yy_c_buf_p) = (yytext_ptr) + yy_amount_of_matched_text;
-
-			yy_current_state = yy_get_previous_state(  );
-
-			/* Okay, we're now positioned to make the NUL
-			 * transition.  We couldn't have
-			 * yy_get_previous_state() go ahead and do it
-			 * for us because it doesn't know how to deal
-			 * with the possibility of jamming (and we don't
-			 * want to build jamming into it because then it
-			 * will run more slowly).
-			 */
-
-			yy_next_state = yy_try_NUL_trans( yy_current_state );
-
-			yy_bp = (yytext_ptr) + YY_MORE_ADJ;
-
-			if ( yy_next_state )
-				{
-				/* Consume the NUL. */
-				yy_cp = ++(yy_c_buf_p);
-				yy_current_state = yy_next_state;
-				goto yy_match;
-				}
-
-			else
-				{
-				yy_cp = (yy_c_buf_p);
-				goto yy_find_action;
-				}
-			}
-
-		else switch ( yy_get_next_buffer(  ) )
-			{
-			case EOB_ACT_END_OF_FILE:
-				{
-				(yy_did_buffer_switch_on_eof) = 0;
-
-				if ( yywrap( ) )
-					{
-					/* Note: because we've taken care in
-					 * yy_get_next_buffer() to have set up
-					 * yytext, we can now set up
-					 * yy_c_buf_p so that if some total
-					 * hoser (like flex itself) wants to
-					 * call the scanner after we return the
-					 * YY_NULL, it'll still work - another
-					 * YY_NULL will get returned.
-					 */
-					(yy_c_buf_p) = (yytext_ptr) + YY_MORE_ADJ;
-
-					yy_act = YY_STATE_EOF(YY_START);
-					goto do_action;
-					}
-
-				else
-					{
-					if ( ! (yy_did_buffer_switch_on_eof) )
-						YY_NEW_FILE;
-					}
-				break;
-				}
-
-			case EOB_ACT_CONTINUE_SCAN:
-				(yy_c_buf_p) =
-					(yytext_ptr) + yy_amount_of_matched_text;
-
-				yy_current_state = yy_get_previous_state(  );
-
-				yy_cp = (yy_c_buf_p);
-				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
-				goto yy_match;
-
-			case EOB_ACT_LAST_MATCH:
-				(yy_c_buf_p) =
-				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)];
-
-				yy_current_state = yy_get_previous_state(  );
-
-				yy_cp = (yy_c_buf_p);
-				yy_bp = (yytext_ptr) + YY_MORE_ADJ;
-				goto yy_find_action;
-			}
-		break;
-		}
-
-	default:
-		YY_FATAL_ERROR(
-			"fatal flex scanner internal error--no action found" );
-	} /* end of action switch */
-		} /* end of scanning one token */
-	} /* end of user's declarations */
-} /* end of yylex */
-
-/* yy_get_next_buffer - try to read in a new buffer
- *
- * Returns a code representing an action:
- *	EOB_ACT_LAST_MATCH -
- *	EOB_ACT_CONTINUE_SCAN - continue scanning from current position
- *	EOB_ACT_END_OF_FILE - end of file
- */
-static int yy_get_next_buffer (void)
-{
-    	char *dest = YY_CURRENT_BUFFER_LVALUE->yy_ch_buf;
-	char *source = (yytext_ptr);
-	int number_to_move, i;
-	int ret_val;
-
-	if ( (yy_c_buf_p) > &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] )
-		YY_FATAL_ERROR(
-		"fatal flex scanner internal error--end of buffer missed" );
-
-	if ( YY_CURRENT_BUFFER_LVALUE->yy_fill_buffer == 0 )
-		{ /* Don't try to fill the buffer, so this is an EOF. */
-		if ( (yy_c_buf_p) - (yytext_ptr) - YY_MORE_ADJ == 1 )
-			{
-			/* We matched a single character, the EOB, so
-			 * treat this as a final EOF.
-			 */
-			return EOB_ACT_END_OF_FILE;
-			}
-
-		else
-			{
-			/* We matched some text prior to the EOB, first
-			 * process it.
-			 */
-			return EOB_ACT_LAST_MATCH;
-			}
-		}
-
-	/* Try to read more data. */
-
-	/* First move last chars to start of buffer. */
-	number_to_move = (int) ((yy_c_buf_p) - (yytext_ptr) - 1);
-
-	for ( i = 0; i < number_to_move; ++i )
-		*(dest++) = *(source++);
-
-	if ( YY_CURRENT_BUFFER_LVALUE->yy_buffer_status == YY_BUFFER_EOF_PENDING )
-		/* don't do the read, it's not guaranteed to return an EOF,
-		 * just force an EOF
-		 */
-		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars) = 0;
-
-	else
-		{
-			int num_to_read =
-			YY_CURRENT_BUFFER_LVALUE->yy_buf_size - number_to_move - 1;
-
-		while ( num_to_read <= 0 )
-			{ /* Not enough room in the buffer - grow it. */
-
-			/* just a shorter name for the current buffer */
-			YY_BUFFER_STATE b = YY_CURRENT_BUFFER_LVALUE;
-
-			int yy_c_buf_p_offset =
-				(int) ((yy_c_buf_p) - b->yy_ch_buf);
-
-			if ( b->yy_is_our_buffer )
-				{
-				int new_size = b->yy_buf_size * 2;
-
-				if ( new_size <= 0 )
-					b->yy_buf_size += b->yy_buf_size / 8;
-				else
-					b->yy_buf_size *= 2;
-
-				b->yy_ch_buf = (char *)
-					/* Include room in for 2 EOB chars. */
-					yyrealloc((void *) b->yy_ch_buf,(yy_size_t) (b->yy_buf_size + 2)  );
-				}
-			else
-				/* Can't grow it, we don't own it. */
-				b->yy_ch_buf = NULL;
-
-			if ( ! b->yy_ch_buf )
-				YY_FATAL_ERROR(
-				"fatal error - scanner input buffer overflow" );
-
-			(yy_c_buf_p) = &b->yy_ch_buf[yy_c_buf_p_offset];
-
-			num_to_read = YY_CURRENT_BUFFER_LVALUE->yy_buf_size -
-						number_to_move - 1;
-
-			}
-
-		if ( num_to_read > YY_READ_BUF_SIZE )
-			num_to_read = YY_READ_BUF_SIZE;
-
-		/* Read in more data. */
-		YY_INPUT( (&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move]),
-			(yy_n_chars), num_to_read );
-
-		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
-		}
-
-	if ( (yy_n_chars) == 0 )
-		{
-		if ( number_to_move == YY_MORE_ADJ )
-			{
-			ret_val = EOB_ACT_END_OF_FILE;
-			yyrestart(yyin  );
-			}
-
-		else
-			{
-			ret_val = EOB_ACT_LAST_MATCH;
-			YY_CURRENT_BUFFER_LVALUE->yy_buffer_status =
-				YY_BUFFER_EOF_PENDING;
-			}
-		}
-
-	else
-		ret_val = EOB_ACT_CONTINUE_SCAN;
-
-	if (((yy_n_chars) + number_to_move) > YY_CURRENT_BUFFER_LVALUE->yy_buf_size) {
-		/* Extend the array by 50%, plus the number we really need. */
-		int new_size = (yy_n_chars) + number_to_move + ((yy_n_chars) >> 1);
-		YY_CURRENT_BUFFER_LVALUE->yy_ch_buf = (char *) yyrealloc((void *) YY_CURRENT_BUFFER_LVALUE->yy_ch_buf,(yy_size_t) new_size  );
-		if ( ! YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
-			YY_FATAL_ERROR( "out of dynamic memory in yy_get_next_buffer()" );
-	}
-
-	(yy_n_chars) += number_to_move;
-	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] = YY_END_OF_BUFFER_CHAR;
-	YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars) + 1] = YY_END_OF_BUFFER_CHAR;
-
-	(yytext_ptr) = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[0];
-
-	return ret_val;
-}
-
-/* yy_get_previous_state - get the state just before the EOB char was reached */
-
-    static yy_state_type yy_get_previous_state (void)
-{
-	yy_state_type yy_current_state;
-	char *yy_cp;
-    
-	yy_current_state = (yy_start);
-
-	for ( yy_cp = (yytext_ptr) + YY_MORE_ADJ; yy_cp < (yy_c_buf_p); ++yy_cp )
-		{
-		YY_CHAR yy_c = (*yy_cp ? yy_ec[YY_SC_TO_UI(*yy_cp)] : 1);
-		if ( yy_accept[yy_current_state] )
-			{
-			(yy_last_accepting_state) = yy_current_state;
-			(yy_last_accepting_cpos) = yy_cp;
-			}
-		while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
-			{
-			yy_current_state = (int) yy_def[yy_current_state];
-			if ( yy_current_state >= 184 )
-				yy_c = yy_meta[yy_c];
-			}
-		yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
-		}
-
-	return yy_current_state;
-}
-
-/* yy_try_NUL_trans - try to make a transition on the NUL character
- *
- * synopsis
- *	next_state = yy_try_NUL_trans( current_state );
- */
-    static yy_state_type yy_try_NUL_trans  (yy_state_type yy_current_state )
-{
-	int yy_is_jam;
-    	char *yy_cp = (yy_c_buf_p);
-
-	YY_CHAR yy_c = 1;
-	if ( yy_accept[yy_current_state] )
-		{
-		(yy_last_accepting_state) = yy_current_state;
-		(yy_last_accepting_cpos) = yy_cp;
-		}
-	while ( yy_chk[yy_base[yy_current_state] + yy_c] != yy_current_state )
-		{
-		yy_current_state = (int) yy_def[yy_current_state];
-		if ( yy_current_state >= 184 )
-			yy_c = yy_meta[yy_c];
-		}
-	yy_current_state = yy_nxt[yy_base[yy_current_state] + yy_c];
-	yy_is_jam = (yy_current_state == 183);
-
-		return yy_is_jam ? 0 : yy_current_state;
-}
-
-#ifndef YY_NO_UNPUT
-
-    static void yyunput (int c, char * yy_bp )
-{
-	char *yy_cp;
-    
-    yy_cp = (yy_c_buf_p);
-
-	/* undo effects of setting up yytext */
-	*yy_cp = (yy_hold_char);
-
-	if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
-		{ /* need to shift things up to make room */
-		/* +2 for EOB chars. */
-		int number_to_move = (yy_n_chars) + 2;
-		char *dest = &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[
-					YY_CURRENT_BUFFER_LVALUE->yy_buf_size + 2];
-		char *source =
-				&YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[number_to_move];
-
-		while ( source > YY_CURRENT_BUFFER_LVALUE->yy_ch_buf )
-			*--dest = *--source;
-
-		yy_cp += (int) (dest - source);
-		yy_bp += (int) (dest - source);
-		YY_CURRENT_BUFFER_LVALUE->yy_n_chars =
-			(yy_n_chars) = (int) YY_CURRENT_BUFFER_LVALUE->yy_buf_size;
-
-		if ( yy_cp < YY_CURRENT_BUFFER_LVALUE->yy_ch_buf + 2 )
-			YY_FATAL_ERROR( "flex scanner push-back overflow" );
-		}
-
-	*--yy_cp = (char) c;
-
-	(yytext_ptr) = yy_bp;
-	(yy_hold_char) = *yy_cp;
-	(yy_c_buf_p) = yy_cp;
-}
-
-#endif
-
-#ifndef YY_NO_INPUT
-#ifdef __cplusplus
-    static int yyinput (void)
-#else
-    static int input  (void)
-#endif
-
-{
-	int c;
-    
-	*(yy_c_buf_p) = (yy_hold_char);
-
-	if ( *(yy_c_buf_p) == YY_END_OF_BUFFER_CHAR )
-		{
-		/* yy_c_buf_p now points to the character we want to return.
-		 * If this occurs *before* the EOB characters, then it's a
-		 * valid NUL; if not, then we've hit the end of the buffer.
-		 */
-		if ( (yy_c_buf_p) < &YY_CURRENT_BUFFER_LVALUE->yy_ch_buf[(yy_n_chars)] )
-			/* This was really a NUL. */
-			*(yy_c_buf_p) = '\0';
-
-		else
-			{ /* need more input */
-			int offset = (int) ((yy_c_buf_p) - (yytext_ptr));
-			++(yy_c_buf_p);
-
-			switch ( yy_get_next_buffer(  ) )
-				{
-				case EOB_ACT_LAST_MATCH:
-					/* This happens because yy_g_n_b()
-					 * sees that we've accumulated a
-					 * token and flags that we need to
-					 * try matching the token before
-					 * proceeding.  But for input(),
-					 * there's no matching to consider.
-					 * So convert the EOB_ACT_LAST_MATCH
-					 * to EOB_ACT_END_OF_FILE.
-					 */
-
-					/* Reset buffer status. */
-					yyrestart(yyin );
-
-					/*FALLTHROUGH*/
-
-				case EOB_ACT_END_OF_FILE:
-					{
-					if ( yywrap( ) )
-						return 0;
-
-					if ( ! (yy_did_buffer_switch_on_eof) )
-						YY_NEW_FILE;
-#ifdef __cplusplus
-					return yyinput();
-#else
-					return input();
-#endif
-					}
-
-				case EOB_ACT_CONTINUE_SCAN:
-					(yy_c_buf_p) = (yytext_ptr) + offset;
-					break;
-				}
-			}
-		}
-
-	c = *(unsigned char *) (yy_c_buf_p);	/* cast for 8-bit char's */
-	*(yy_c_buf_p) = '\0';	/* preserve yytext */
-	(yy_hold_char) = *++(yy_c_buf_p);
-
-	return c;
-}
-#endif	/* ifndef YY_NO_INPUT */
-
-/** Immediately switch to a different input stream.
- * @param input_file A readable stream.
- * 
- * @note This function does not reset the start condition to @c INITIAL .
- */
-    void yyrestart  (FILE * input_file )
-{
-    
-	if ( ! YY_CURRENT_BUFFER ){
-        yyensure_buffer_stack ();
-		YY_CURRENT_BUFFER_LVALUE =
-            yy_create_buffer(yyin,YY_BUF_SIZE );
-	}
-
-	yy_init_buffer(YY_CURRENT_BUFFER,input_file );
-	yy_load_buffer_state( );
-}
-
-/** Switch to a different input buffer.
- * @param new_buffer The new input buffer.
- * 
- */
-    void yy_switch_to_buffer  (YY_BUFFER_STATE  new_buffer )
-{
-    
-	/* TODO. We should be able to replace this entire function body
-	 * with
-	 *		yypop_buffer_state();
-	 *		yypush_buffer_state(new_buffer);
-     */
-	yyensure_buffer_stack ();
-	if ( YY_CURRENT_BUFFER == new_buffer )
-		return;
-
-	if ( YY_CURRENT_BUFFER )
-		{
-		/* Flush out information for old buffer. */
-		*(yy_c_buf_p) = (yy_hold_char);
-		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
-		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
-		}
-
-	YY_CURRENT_BUFFER_LVALUE = new_buffer;
-	yy_load_buffer_state( );
-
-	/* We don't actually know whether we did this switch during
-	 * EOF (yywrap()) processing, but the only time this flag
-	 * is looked at is after yywrap() is called, so it's safe
-	 * to go ahead and always set it.
-	 */
-	(yy_did_buffer_switch_on_eof) = 1;
-}
-
-static void yy_load_buffer_state  (void)
-{
-    	(yy_n_chars) = YY_CURRENT_BUFFER_LVALUE->yy_n_chars;
-	(yytext_ptr) = (yy_c_buf_p) = YY_CURRENT_BUFFER_LVALUE->yy_buf_pos;
-	yyin = YY_CURRENT_BUFFER_LVALUE->yy_input_file;
-	(yy_hold_char) = *(yy_c_buf_p);
-}
-
-/** Allocate and initialize an input buffer state.
- * @param file A readable stream.
- * @param size The character buffer size in bytes. When in doubt, use @c YY_BUF_SIZE.
- * 
- * @return the allocated buffer state.
- */
-    YY_BUFFER_STATE yy_create_buffer  (FILE * file, int  size )
-{
-	YY_BUFFER_STATE b;
-    
-	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
-	if ( ! b )
-		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
-	b->yy_buf_size = size;
-
-	/* yy_ch_buf has to be 2 characters longer than the size given because
-	 * we need to put in 2 end-of-buffer characters.
-	 */
-	b->yy_ch_buf = (char *) yyalloc((yy_size_t) (b->yy_buf_size + 2)  );
-	if ( ! b->yy_ch_buf )
-		YY_FATAL_ERROR( "out of dynamic memory in yy_create_buffer()" );
-
-	b->yy_is_our_buffer = 1;
-
-	yy_init_buffer(b,file );
-
-	return b;
-}
-
-/** Destroy the buffer.
- * @param b a buffer created with yy_create_buffer()
- * 
- */
-    void yy_delete_buffer (YY_BUFFER_STATE  b )
-{
-    
-	if ( ! b )
-		return;
-
-	if ( b == YY_CURRENT_BUFFER ) /* Not sure if we should pop here. */
-		YY_CURRENT_BUFFER_LVALUE = (YY_BUFFER_STATE) 0;
-
-	if ( b->yy_is_our_buffer )
-		yyfree((void *) b->yy_ch_buf  );
-
-	yyfree((void *) b  );
-}
-
-/* Initializes or reinitializes a buffer.
- * This function is sometimes called more than once on the same buffer,
- * such as during a yyrestart() or at EOF.
- */
-    static void yy_init_buffer  (YY_BUFFER_STATE  b, FILE * file )
-
-{
-	int oerrno = errno;
-    
-	yy_flush_buffer(b );
-
-	b->yy_input_file = file;
-	b->yy_fill_buffer = 1;
-
-    /* If b is the current buffer, then yy_init_buffer was _probably_
-     * called from yyrestart() or through yy_get_next_buffer.
-     * In that case, we don't want to reset the lineno or column.
-     */
-    if (b != YY_CURRENT_BUFFER){
-        b->yy_bs_lineno = 1;
-        b->yy_bs_column = 0;
-    }
-
-        b->yy_is_interactive = file ? (isatty( fileno(file) ) > 0) : 0;
-    
-	errno = oerrno;
-}
-
-/** Discard all buffered characters. On the next scan, YY_INPUT will be called.
- * @param b the buffer state to be flushed, usually @c YY_CURRENT_BUFFER.
- * 
- */
-    void yy_flush_buffer (YY_BUFFER_STATE  b )
-{
-    	if ( ! b )
-		return;
-
-	b->yy_n_chars = 0;
-
-	/* We always need two end-of-buffer characters.  The first causes
-	 * a transition to the end-of-buffer state.  The second causes
-	 * a jam in that state.
-	 */
-	b->yy_ch_buf[0] = YY_END_OF_BUFFER_CHAR;
-	b->yy_ch_buf[1] = YY_END_OF_BUFFER_CHAR;
-
-	b->yy_buf_pos = &b->yy_ch_buf[0];
-
-	b->yy_at_bol = 1;
-	b->yy_buffer_status = YY_BUFFER_NEW;
-
-	if ( b == YY_CURRENT_BUFFER )
-		yy_load_buffer_state( );
-}
-
-/** Pushes the new state onto the stack. The new state becomes
- *  the current state. This function will allocate the stack
- *  if necessary.
- *  @param new_buffer The new state.
- *  
- */
-void yypush_buffer_state (YY_BUFFER_STATE new_buffer )
-{
-    	if (new_buffer == NULL)
-		return;
-
-	yyensure_buffer_stack();
-
-	/* This block is copied from yy_switch_to_buffer. */
-	if ( YY_CURRENT_BUFFER )
-		{
-		/* Flush out information for old buffer. */
-		*(yy_c_buf_p) = (yy_hold_char);
-		YY_CURRENT_BUFFER_LVALUE->yy_buf_pos = (yy_c_buf_p);
-		YY_CURRENT_BUFFER_LVALUE->yy_n_chars = (yy_n_chars);
-		}
-
-	/* Only push if top exists. Otherwise, replace top. */
-	if (YY_CURRENT_BUFFER)
-		(yy_buffer_stack_top)++;
-	YY_CURRENT_BUFFER_LVALUE = new_buffer;
-
-	/* copied from yy_switch_to_buffer. */
-	yy_load_buffer_state( );
-	(yy_did_buffer_switch_on_eof) = 1;
-}
-
-/** Removes and deletes the top of the stack, if present.
- *  The next element becomes the new top.
- *  
- */
-void yypop_buffer_state (void)
-{
-    	if (!YY_CURRENT_BUFFER)
-		return;
-
-	yy_delete_buffer(YY_CURRENT_BUFFER );
-	YY_CURRENT_BUFFER_LVALUE = NULL;
-	if ((yy_buffer_stack_top) > 0)
-		--(yy_buffer_stack_top);
-
-	if (YY_CURRENT_BUFFER) {
-		yy_load_buffer_state( );
-		(yy_did_buffer_switch_on_eof) = 1;
-	}
-}
-
-/* Allocates the stack if it does not exist.
- *  Guarantees space for at least one push.
- */
-static void yyensure_buffer_stack (void)
-{
-	yy_size_t num_to_alloc;
-    
-	if (!(yy_buffer_stack)) {
-
-		/* First allocation is just for 2 elements, since we don't know if this
-		 * scanner will even need a stack. We use 2 instead of 1 to avoid an
-		 * immediate realloc on the next call.
-         */
-      num_to_alloc = 1; /* After all that talk, this was set to 1 anyways... */
-		(yy_buffer_stack) = (struct yy_buffer_state**)yyalloc
-								(num_to_alloc * sizeof(struct yy_buffer_state*)
-								);
-		if ( ! (yy_buffer_stack) )
-			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
-
-		memset((yy_buffer_stack), 0, num_to_alloc * sizeof(struct yy_buffer_state*));
-
-		(yy_buffer_stack_max) = num_to_alloc;
-		(yy_buffer_stack_top) = 0;
-		return;
-	}
-
-	if ((yy_buffer_stack_top) >= ((yy_buffer_stack_max)) - 1){
-
-		/* Increase the buffer to prepare for a possible push. */
-		yy_size_t grow_size = 8 /* arbitrary grow size */;
-
-		num_to_alloc = (yy_buffer_stack_max) + grow_size;
-		(yy_buffer_stack) = (struct yy_buffer_state**)yyrealloc
-								((yy_buffer_stack),
-								num_to_alloc * sizeof(struct yy_buffer_state*)
-								);
-		if ( ! (yy_buffer_stack) )
-			YY_FATAL_ERROR( "out of dynamic memory in yyensure_buffer_stack()" );
-
-		/* zero only the new slots.*/
-		memset((yy_buffer_stack) + (yy_buffer_stack_max), 0, grow_size * sizeof(struct yy_buffer_state*));
-		(yy_buffer_stack_max) = num_to_alloc;
-	}
-}
-
-/** Setup the input buffer state to scan directly from a user-specified character buffer.
- * @param base the character buffer
- * @param size the size in bytes of the character buffer
- * 
- * @return the newly allocated buffer state object.
- */
-YY_BUFFER_STATE yy_scan_buffer  (char * base, yy_size_t  size )
-{
-	YY_BUFFER_STATE b;
-    
-	if ( size < 2 ||
-	     base[size-2] != YY_END_OF_BUFFER_CHAR ||
-	     base[size-1] != YY_END_OF_BUFFER_CHAR )
-		/* They forgot to leave room for the EOB's. */
-		return NULL;
-
-	b = (YY_BUFFER_STATE) yyalloc(sizeof( struct yy_buffer_state )  );
-	if ( ! b )
-		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_buffer()" );
-
-	b->yy_buf_size = (int) (size - 2);	/* "- 2" to take care of EOB's */
-	b->yy_buf_pos = b->yy_ch_buf = base;
-	b->yy_is_our_buffer = 0;
-	b->yy_input_file = NULL;
-	b->yy_n_chars = b->yy_buf_size;
-	b->yy_is_interactive = 0;
-	b->yy_at_bol = 1;
-	b->yy_fill_buffer = 0;
-	b->yy_buffer_status = YY_BUFFER_NEW;
-
-	yy_switch_to_buffer(b  );
-
-	return b;
-}
-
-/** Setup the input buffer state to scan a string. The next call to yylex() will
- * scan from a @e copy of @a str.
- * @param yystr a NUL-terminated string to scan
- * 
- * @return the newly allocated buffer state object.
- * @note If you want to scan bytes that may contain NUL values, then use
- *       yy_scan_bytes() instead.
- */
-YY_BUFFER_STATE yy_scan_string (const char * yystr )
-{
-    
-	return yy_scan_bytes(yystr,(int) strlen(yystr) );
-}
-
-/** Setup the input buffer state to scan the given bytes. The next call to yylex() will
- * scan from a @e copy of @a bytes.
- * @param yybytes the byte buffer to scan
- * @param _yybytes_len the number of bytes in the buffer pointed to by @a bytes.
- * 
- * @return the newly allocated buffer state object.
- */
-YY_BUFFER_STATE yy_scan_bytes  (const char * yybytes, int  _yybytes_len )
-{
-	YY_BUFFER_STATE b;
-	char *buf;
-	yy_size_t n;
-	int i;
-    
-	/* Get memory for full buffer, including space for trailing EOB's. */
-	n = (yy_size_t) (_yybytes_len + 2);
-	buf = (char *) yyalloc(n  );
-	if ( ! buf )
-		YY_FATAL_ERROR( "out of dynamic memory in yy_scan_bytes()" );
-
-	for ( i = 0; i < _yybytes_len; ++i )
-		buf[i] = yybytes[i];
-
-	buf[_yybytes_len] = buf[_yybytes_len+1] = YY_END_OF_BUFFER_CHAR;
-
-	b = yy_scan_buffer(buf,n );
-	if ( ! b )
-		YY_FATAL_ERROR( "bad buffer in yy_scan_bytes()" );
-
-	/* It's okay to grow etc. this buffer, and we should throw it
-	 * away when we're done.
-	 */
-	b->yy_is_our_buffer = 1;
-
-	return b;
-}
-
-#ifndef YY_EXIT_FAILURE
-#define YY_EXIT_FAILURE 2
-#endif
-
-static void yynoreturn yy_fatal_error (const char* msg )
-{
-			(void) fprintf( stderr, "%s\n", msg );
-	exit( YY_EXIT_FAILURE );
-}
-
-/* Redefine yyless() so it works in section 3 code. */
-
-#undef yyless
-#define yyless(n) \
-	do \
-		{ \
-		/* Undo effects of setting up yytext. */ \
-        int yyless_macro_arg = (n); \
-        YY_LESS_LINENO(yyless_macro_arg);\
-		yytext[yyleng] = (yy_hold_char); \
-		(yy_c_buf_p) = yytext + yyless_macro_arg; \
-		(yy_hold_char) = *(yy_c_buf_p); \
-		*(yy_c_buf_p) = '\0'; \
-		yyleng = yyless_macro_arg; \
-		} \
-	while ( 0 )
-
-/* Accessor  methods (get/set functions) to struct members. */
-
-/** Get the current line number.
- * 
- */
-int yyget_lineno  (void)
-{
-    
-    return yylineno;
-}
-
-/** Get the input stream.
- * 
- */
-FILE *yyget_in  (void)
-{
-        return yyin;
-}
-
-/** Get the output stream.
- * 
- */
-FILE *yyget_out  (void)
-{
-        return yyout;
-}
-
-/** Get the length of the current token.
- * 
- */
-int yyget_leng  (void)
-{
-        return yyleng;
-}
-
-/** Get the current token.
- * 
- */
-
-char *yyget_text  (void)
-{
-        return yytext;
-}
-
-/** Set the current line number.
- * @param _line_number line number
- * 
- */
-void yyset_lineno (int  _line_number )
-{
-    
-    yylineno = _line_number;
-}
-
-/** Set the input stream. This does not discard the current
- * input buffer.
- * @param _in_str A readable stream.
- * 
- * @see yy_switch_to_buffer
- */
-void yyset_in (FILE *  _in_str )
-{
-        yyin = _in_str ;
-}
-
-void yyset_out (FILE *  _out_str )
-{
-        yyout = _out_str ;
-}
-
-int yyget_debug  (void)
-{
-        return yy_flex_debug;
-}
-
-void yyset_debug (int  _bdebug )
-{
-        yy_flex_debug = _bdebug ;
-}
-
-static int yy_init_globals (void)
-{
-        /* Initialization is the same as for the non-reentrant scanner.
-     * This function is called from yylex_destroy(), so don't allocate here.
-     */
-
-    (yy_buffer_stack) = NULL;
-    (yy_buffer_stack_top) = 0;
-    (yy_buffer_stack_max) = 0;
-    (yy_c_buf_p) = NULL;
-    (yy_init) = 0;
-    (yy_start) = 0;
-
-/* Defined in main.c */
-#ifdef YY_STDINIT
-    yyin = stdin;
-    yyout = stdout;
-#else
-    yyin = NULL;
-    yyout = NULL;
-#endif
-
-    /* For future reference: Set errno on error, since we are called by
-     * yylex_init()
-     */
-    return 0;
-}
-
-/* yylex_destroy is for both reentrant and non-reentrant scanners. */
-int yylex_destroy  (void)
-{
-    
-    /* Pop the buffer stack, destroying each element. */
-	while(YY_CURRENT_BUFFER){
-		yy_delete_buffer(YY_CURRENT_BUFFER  );
-		YY_CURRENT_BUFFER_LVALUE = NULL;
-		yypop_buffer_state();
-	}
-
-	/* Destroy the stack itself. */
-	yyfree((yy_buffer_stack) );
-	(yy_buffer_stack) = NULL;
-
-    /* Reset the globals. This is important in a non-reentrant scanner so the next time
-     * yylex() is called, initialization will occur. */
-    yy_init_globals( );
-
-    return 0;
-}
-
-/*
- * Internal utility routines.
- */
-
-#ifndef yytext_ptr
-static void yy_flex_strncpy (char* s1, const char * s2, int n )
-{
-		
-	int i;
-	for ( i = 0; i < n; ++i )
-		s1[i] = s2[i];
-}
-#endif
-
-#ifdef YY_NEED_STRLEN
-static int yy_flex_strlen (const char * s )
-{
-	int n;
-	for ( n = 0; s[n]; ++n )
-		;
-
-	return n;
-}
-#endif
-
-void *yyalloc (yy_size_t  size )
-{
-			return malloc(size);
-}
-
-void *yyrealloc  (void * ptr, yy_size_t  size )
-{
-		
-	/* The cast to (char *) in the following accommodates both
-	 * implementations that use char* generic pointers, and those
-	 * that use void* generic pointers.  It works with the latter
-	 * because both ANSI C and C++ allow castless assignment from
-	 * any pointer type to void*, and deal with argument conversions
-	 * as though doing an assignment.
-	 */
-	return realloc(ptr, size);
-}
-
-void yyfree (void * ptr )
-{
-			free( (char *) ptr );	/* see yyrealloc() for (char *) cast */
-}
-
-#define YYTABLES_NAME "yytables"
-
-#line 131 "src/c_lexer.flex"
-
-
diff --git a/c_parser/src/c_parser.output b/c_parser/src/c_parser.output
new file mode 100644
index 0000000..becc5a7
--- /dev/null
+++ b/c_parser/src/c_parser.output
@@ -0,0 +1,310 @@
+Grammar
+
+    0 $accept: ROOT $end
+
+    1 ROOT: EXPR
+
+    2 EXPR: TERM
+    3     | EXPR T_PLUS TERM
+    4     | EXPR T_MINUS TERM
+
+    5 TERM: FACTOR
+    6     | TERM T_TIMES FACTOR
+    7     | TERM T_DIVIDE FACTOR
+
+    8 FACTOR: T_NUMBER
+    9       | T_VARIABLE
+   10       | T_LBRACKET EXPR T_RBRACKET
+   11       | FUNCTION_NAME FACTOR
+
+   12 FUNCTION_NAME: T_LOG
+   13              | T_EXP
+   14              | T_SQRT
+
+
+Terminals, with rules where they appear
+
+$end (0) 0
+error (256)
+T_TIMES (258) 6
+T_PLUS (259) 3
+T_DIVIDE (260) 7
+T_MINUS (261) 4
+T_LBRACKET (262) 10
+T_RBRACKET (263) 10
+T_LOG (264) 12
+T_EXP (265) 13
+T_SQRT (266) 14
+T_NUMBER (267) 8
+T_VARIABLE (268) 9
+
+
+Nonterminals, with rules where they appear
+
+$accept (14)
+    on left: 0
+ROOT (15)
+    on left: 1, on right: 0
+EXPR (16)
+    on left: 2 3 4, on right: 1 3 4 10
+TERM (17)
+    on left: 5 6 7, on right: 2 3 4 6 7
+FACTOR (18)
+    on left: 8 9 10 11, on right: 5 6 7 11
+FUNCTION_NAME (19)
+    on left: 12 13 14, on right: 11
+
+
+State 0
+
+    0 $accept: . ROOT $end
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    ROOT           go to state 7
+    EXPR           go to state 8
+    TERM           go to state 9
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 1
+
+   10 FACTOR: T_LBRACKET . EXPR T_RBRACKET
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    EXPR           go to state 12
+    TERM           go to state 9
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 2
+
+   12 FUNCTION_NAME: T_LOG .
+
+    $default  reduce using rule 12 (FUNCTION_NAME)
+
+
+State 3
+
+   13 FUNCTION_NAME: T_EXP .
+
+    $default  reduce using rule 13 (FUNCTION_NAME)
+
+
+State 4
+
+   14 FUNCTION_NAME: T_SQRT .
+
+    $default  reduce using rule 14 (FUNCTION_NAME)
+
+
+State 5
+
+    8 FACTOR: T_NUMBER .
+
+    $default  reduce using rule 8 (FACTOR)
+
+
+State 6
+
+    9 FACTOR: T_VARIABLE .
+
+    $default  reduce using rule 9 (FACTOR)
+
+
+State 7
+
+    0 $accept: ROOT . $end
+
+    $end  shift, and go to state 13
+
+
+State 8
+
+    1 ROOT: EXPR .
+    3 EXPR: EXPR . T_PLUS TERM
+    4     | EXPR . T_MINUS TERM
+
+    T_PLUS   shift, and go to state 14
+    T_MINUS  shift, and go to state 15
+
+    $default  reduce using rule 1 (ROOT)
+
+
+State 9
+
+    2 EXPR: TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 2 (EXPR)
+
+
+State 10
+
+    5 TERM: FACTOR .
+
+    $default  reduce using rule 5 (TERM)
+
+
+State 11
+
+   11 FACTOR: FUNCTION_NAME . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 18
+    FUNCTION_NAME  go to state 11
+
+
+State 12
+
+    3 EXPR: EXPR . T_PLUS TERM
+    4     | EXPR . T_MINUS TERM
+   10 FACTOR: T_LBRACKET EXPR . T_RBRACKET
+
+    T_PLUS      shift, and go to state 14
+    T_MINUS     shift, and go to state 15
+    T_RBRACKET  shift, and go to state 19
+
+
+State 13
+
+    0 $accept: ROOT $end .
+
+    $default  accept
+
+
+State 14
+
+    3 EXPR: EXPR T_PLUS . TERM
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    TERM           go to state 20
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 15
+
+    4 EXPR: EXPR T_MINUS . TERM
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    TERM           go to state 21
+    FACTOR         go to state 10
+    FUNCTION_NAME  go to state 11
+
+
+State 16
+
+    6 TERM: TERM T_TIMES . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 22
+    FUNCTION_NAME  go to state 11
+
+
+State 17
+
+    7 TERM: TERM T_DIVIDE . FACTOR
+
+    T_LBRACKET  shift, and go to state 1
+    T_LOG       shift, and go to state 2
+    T_EXP       shift, and go to state 3
+    T_SQRT      shift, and go to state 4
+    T_NUMBER    shift, and go to state 5
+    T_VARIABLE  shift, and go to state 6
+
+    FACTOR         go to state 23
+    FUNCTION_NAME  go to state 11
+
+
+State 18
+
+   11 FACTOR: FUNCTION_NAME FACTOR .
+
+    $default  reduce using rule 11 (FACTOR)
+
+
+State 19
+
+   10 FACTOR: T_LBRACKET EXPR T_RBRACKET .
+
+    $default  reduce using rule 10 (FACTOR)
+
+
+State 20
+
+    3 EXPR: EXPR T_PLUS TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 3 (EXPR)
+
+
+State 21
+
+    4 EXPR: EXPR T_MINUS TERM .
+    6 TERM: TERM . T_TIMES FACTOR
+    7     | TERM . T_DIVIDE FACTOR
+
+    T_TIMES   shift, and go to state 16
+    T_DIVIDE  shift, and go to state 17
+
+    $default  reduce using rule 4 (EXPR)
+
+
+State 22
+
+    6 TERM: TERM T_TIMES FACTOR .
+
+    $default  reduce using rule 6 (TERM)
+
+
+State 23
+
+    7 TERM: TERM T_DIVIDE FACTOR .
+
+    $default  reduce using rule 7 (TERM)
diff --git a/c_parser/src/c_parser.y b/c_parser/src/c_parser.y
new file mode 100644
index 0000000..9ef385f
--- /dev/null
+++ b/c_parser/src/c_parser.y
@@ -0,0 +1,67 @@
+%code requires{
+
+  #include <cassert>
+
+  extern const Expression *g_root; // A way of getting the AST out
+
+  //! This is to fix problems when generating C++
+  // We are declaring the functions provided by Flex, so
+  // that Bison generated code can call them.
+  int yylex(void);
+  void yyerror(const char *);
+}
+
+// Represents the value associated with any kind of
+// AST node.
+%union{
+  const Expression *expr;
+  double number;
+  std::string *string;
+}
+
+%token T_TIMES T_PLUS T_DIVIDE T_MINUS T_LBRACKET T_RBRACKET T_LOG T_EXP T_SQRT T_NUMBER T_VARIABLE
+
+%type <expr> EXPR TERM FACTOR
+%type <number> T_NUMBER
+%type <string> T_VARIABLE T_LOG T_EXP T_SQRT FUNCTION_NAME
+
+%start ROOT
+
+%%
+
+ROOT : EXPR { g_root = $1; }
+
+EXPR : TERM                 { $$ = $1; }
+     | EXPR T_PLUS TERM     { $$ = new AddOperator($1, $3); }
+     | EXPR T_MINUS TERM    { $$ = new SubOperator($1, $3); }
+
+TERM : FACTOR               { $$ = $1; }
+     | TERM T_TIMES FACTOR  { $$ = new MulOperator($1, $3); }
+     | TERM T_DIVIDE FACTOR { $$ = new DivOperator($1, $3); }
+
+FACTOR : T_NUMBER           { $$ = new Number( $1 ); }
+       | T_VARIABLE         { $$ = new Variable( *$1 ); }
+       | T_LBRACKET EXPR T_RBRACKET { $$ = $2; }
+       | FUNCTION_NAME FACTOR {
+          if(*$1 == "log") {
+              $$ = new LogFunction($2);
+          } else if(*$1 == "exp") {
+              $$ = new ExpFunction($2);
+          } else {
+              $$ = new SqrtFunction($2);
+       }}
+
+FUNCTION_NAME : T_LOG   { $$ = new std::string("log"); }
+              | T_EXP   { $$ = new std::string("exp"); }
+              | T_SQRT  { $$ = new std::string("sqrt"); }
+
+%%
+
+const Expression *g_root; // Definition of variable (to match declaration earlier)
+
+const Expression *parseAST()
+{
+  g_root=0;
+  yyparse();
+  return g_root;
+}
diff --git a/c_parser/src/main.cpp b/c_parser/src/main.cpp
deleted file mode 100644
index 8b20098..0000000
--- a/c_parser/src/main.cpp
+++ /dev/null
@@ -1,74 +0,0 @@
-#include "c_lexer.hpp"
-
-#include <cassert>
-#include <sstream>
-#include <vector>
-
-std::string *yylval;
-
-int main() {
-	printf("[\n");
-	std::string sourceLine, streamLine, sourceCol, classType, text;
-	while(1) {
-		// get the token type and run the lexer
-		std::stringstream str_line, src_col, src_line;
-
-		TokenType type = (TokenType)yylex();
-
-		str_line << lineCount;
-		streamLine = str_line.str();
-
-		src_col << spaceCount;
-		sourceCol = src_col.str();
-
-		src_line << sourceLineCount;
-		sourceLine = src_line.str();
-
-		if(type == None) {
-			// returns None when the file ends and we want to break then
-			break;
-		} else if(type == Invalid) {
-			// type is Invalid
-			text = *yylval;
-			classType = "Invalid";
-			delete yylval;
-		} else if(type == Keyword) {
-			// found a keyword
-			text = *yylval;
-			classType = "Keyword";
-			delete yylval;
-		} else if(type == Identifier) {
-			// found an identifier
-			text = *yylval;
-			classType = "Identifier";
-			delete yylval;
-		} else if(type == Operator) {
-			// found an operator
-			text = *yylval;
-			classType = "Operator";
-			delete yylval;
-		} else if(type == Constant) {
-			// found a constant
-			text = *yylval;
-			classType = "Constant";
-			delete yylval;
-		} else if(type == StringLiteral) {
-			// found a string literal
-			text = *yylval;
-			classType = "StringLiteral";
-			delete yylval;
-		} else {
-			// if any other type comes we assert to 0
-			assert(0);
-			return 1;
-		}
-
-		printf("%s,\n", toJson(classType, text, streamLine, sourceCol, sourceLine, fileName).c_str());
-
-		spaceCount += yyleng;
-	}
-
-	printf("{}\n]\n");
-
-	return 0;
-}
diff --git a/c_parser/src/.gitignore b/c_parser/src/parser_main.cpp
index e69de29..e69de29 100644
--- a/c_parser/src/.gitignore
+++ b/c_parser/src/parser_main.cpp
diff --git a/c_parser/test/.gitignore b/c_parser/test/.gitignore
deleted file mode 100644
index 94ca778..0000000
--- a/c_parser/test/.gitignore
+++ /dev/null
@@ -1,2 +0,0 @@
-output.json
-pre_processed_test_lex.c
diff --git a/c_parser/test/test_lex.c b/c_parser/test/test_lex.c
deleted file mode 100644
index 9db9054..0000000
--- a/c_parser/test/test_lex.c
+++ /dev/null
@@ -1,14 +0,0 @@
-#include <stdlib.h>
-#include <stdio.h>
-#include <assert.h>
-#include <math.h>
-
-#define POTATO 5
-
-int main(int argc, char* argv[]) {
-	char* h = "Hello World\"";
-	int j = POTATO;
-	int u = 2398uL;
-	float rt = 23.238e-283;
-	return 0;
-}
diff --git a/c_parser/test/test_parser.c b/c_parser/test/test_parser.c
new file mode 100644
index 0000000..e69de29
--- /dev/null
+++ b/c_parser/test/test_parser.c